Improvement in lamp-shades



M. STEWART.

Lamp Shade.

No. 62,768. Patented Feb. 20, 1866.

Wahn ms .$6.5

ilNrrnn STATES' Arnr rrrcn.

IMPROVEMENT IN LAMP-SHADES.

' Specification forming part of Letters Patent No. 52,765, datedFebruary 20, 1866.

To all whom t may concern:

Be it known that I MA'rHEw STEWART, of the city of Philadelphia, in theState of Pennsylvania, have invented a new and useful Improvement inShades for Lamps; and I do hereby declare that the following is a full,clear, and exact description of the construction of the same, referencebeing had to the accomlianying drawings, making a part of thisspecification, in which- Figure l represents the inner side of onehalfof the said improved shade divided vertically; Fig 2, a plan view of theupper end of the same When the reflector is removed, and Fig. 3 ahorizontal section of the picture or transparency holding frame, cut onthe dotted line x y of Fig. l, like letters of reference indicating thesame parts when in the different iigures.

The nature of my invention consists, substantially as hereinaf'terdescribed and set forth, in the production of acircular shade for alamp, having vertical sides for exhibitingv the usual ornamentalpictures or transparencies, surmounted by a detached reflector in theform of a hollow frustum of a cone, the whole being supported upon thelamp by means of arms radiating` from a central thiinble, and bent so asto pass up vertically within the shade and be detachably secured to thesides thereof' by means of shoulders and screw-nuts, whereby greaterfacility and scope is obtained for inserting, changing, or displacingthe pictures or transparencies, and a more substantial and durablesupport given to the whole shade.

In the drawings, A is the reflector; B, the vertical sides, and G C Cthe supporting-arms radiating from the usual thimble D.

The vertical sides B consist of two sheetmetal rims, b b2, each formedso as to have an annular groove, b3 b4, for the reception of the upperand lowered ges, respectively, of a frame, b5, which supports thepictures or transparencies in a vertical position in the shade.

The frame b5 (see Figs. l and 3) consists of a single strip of thinsheet metal or stiff paper, and is about two and three-quarters of aninch Wide, (more or less,) and of a length corresponding with the lengthof either of the grooves b3 or b4. It has three or more openings cutthrough it for displaying the pictures or transparencies c e, and theselatter are adjustably secured by means of vertical crosspictures ortransparencies e to be inserted or d withdrawn with ready facility, andin this condition the frame b5 is bent into a circle and inserted downinto the groove b4 of the rim b2, and then the rim b applied over it, soas to receive the upper edge of the frame b5 within its groove b3, asseen in Fig. l.

The supporting-arms C U C radiate from the central thimble, D, in theusual manner, but instead of each arm ending in the short hook, which isloosely slipped into a short tube on the under side of the inclinedshade, as heretofore, these arms C are each bent vertically upward at apoint close to the low er rim, b2, and extend a little above theupperrim, b',

i the vertical portion passing through the lugs b lf, which project atthe inner edges of the said rims for the purpose as seen in Figs. l and2. A small shoulder, c', is formed near the upper end of each of thearms C, and a screw-thread is cut above it7 on which a smallthunib-and-tinger nut, c2, works. The lower rim, b2, rests on the arms(l at the bends, and the upper ri1n,b, rests on the shoulders c', whilethe nuts c2 keep them securely together, with the frame b5 between them,as before described.

The redeetor A is in the common form of a hollow conical frustum, andmay be made 0f thin sheet metal, porcelain, ground glass, or any othersuitable material. It rests loosely upon the ripper side of the rim b',as seen in Fig. l.

This is a very strong and substantial shade for a lamp, and its verticalsides B afford a more extensive and better position for displaying thepictures or transparencies than the tapering shades in common use, andat the same time present a ready means of changing the latter. withfacility at any time, as the reflector is detached, and the nuts c2 andrim b are easily removed for the purpose of changing either the frame b5or the pictures e; and, moreover, the mode of attaching the shade to thearms C, as described, keeps allthe parts securely and firmly togetherwhether the shade be on or off the lamp.

Having thus fully described my improved lamp-shade, What I claim as newtherein of my invention, and desire to secure by Letters Patent, is-

l. A circular shade having the vertical sides B, consisting of the twogrooved rims, b b2, and a picture-holding frame, b5, between them, thesame being constructed and arranged substantially as and for thepurposes described.

2. ln combination with the said vertical sides B, bending the ends ofthe arms C into the vertical positions shown, together with theirrespective shoulders c,and screw-nuts c2, as and for the purposesdescribed.

3. Makin g the picture or transparency holding frame b5 in one entirepiece, and irrespeci MATHEW STEWART.

Witnesses:

BENJJiMoRlsoN, JAs. WINsMoR-E, Jr.

